注意：未定义的索引：PHP会话中的电子邮件错误[重复]

Question

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• “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP 28 answers

I keep getting this error even though I checked my code over dozens of times.

Here I even define SESSION on top as global before using but I keep getting the same error.

<?php if(!isset($_SESSION)) {session_start();}  ?>

Then I use this line of code

<?php error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);?>

It removes the Notice: Undefined index:email error but the email column remains in blank in the database whenever I insert the data.

It says error on this lines of coding.

$s="insert into donation(ddate,units,detail,email) values('" . $d ."' ,'" . $_POST["t3"]
     . "','" . $_POST["t4"] . "','". $_SESSION["email"] ."')";

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Answer 1

try to echo ur session value so u can know u get session value or not...

after session_start();

echo $_SESSION['email'];